This feeder feeds your pet on time whether you're at home or away. Use the dial timers to schedule your cat or dog's meals up to 24 hours ahead of time, in half-hour increments. With scheduled mealtimes, you can control your pet's portions to keep them happy and healthy. The removable inner tray has two compartments that each hold up to 355ml of dry or semi-moist food. Although your pet may use their paws to try and pry the feeder open, the tamper-resistant lids make sure that even the most persistent pets can't get to the food ahead of schedule. When the feeder needs cleaning, simply remove the tray and place it in the top rack of the dishwasher.